CVE-2018-6544: Artifex Mupdf

Medium severity, CVSS 5.5. EPSS: 1.6% chance of exploitation in the next 30 days.

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Affected products

• Artifex Mupdf: version 1.12.0 only
• Debian Debian Linux: version 8.0 only; version 9.0 only

Published 2018-02-02. Last modified 2026-06-17.